This Tomy walk about baby monitor is small and compact it comes with a portable parent unit with a belt clip. This is a great monitor as it has a two way talk back system so that you can talk back to your baby with out going into there room. This monitor comes with two mains adaptors and for portable use, it will require four x AA batteries. These Tomy monitors have an operating range of up to 300m. If you are looking for a basic monitor then this could be the one.